Air-gas mixer for a valve unit



FIG. 1 is a perspective view from the bottom right of an air-gas mixerof a valve unit;

FIG. 2 is a perspective view from the top right of the air-gas mixer ofFIG. 1;

FIG. 3 is a perspective view from the top left of the air-gas mixer ofFIG. 1;

FIG. 4 is a perspective view from the bottom left of the air-gas mixerof FIG. 1;

FIG. 5 is a bottom plan view of the air-gas mixer of FIG. 1;

FIG. 6 is an elevation view from the back side of the air-gas mixer ofFIG. 1;

FIG. 7 is a top plan view of the air-gas mixer of FIG. 1;

FIG. 8 is a front elevation view of the air-gas mixer of FIG. 1;

FIG. 9 is an elevation view from the left side of the air-gas mixer ofFIG. 1; and,

FIG. 10 is an elevation view from the right side of the air-gas mixer ofFIG. 1.

The broken lines are for illustration only and form no part of theclaimed design.

The ornamental design for an air-gas mixer for a valve unit, as shownand described.